Uropodella (Acari: Mesostigmata: Sejidae), mites unchanged from Eocene past to Holocene present
Lindquist, Evert E. and Vorontsov, Dmitry D.  Species list and habitat preference of Mesostigmata mites (Acari, Parasitiformes) in Latvia
Salmane, I. and Brumelis, G.